iSync: Contact with a phone number in Address Book isn‘t synced to your mobile phone

When using the "Only synchronize contacts with phone numbers" feature of iSync, a contact may not be transferred to a phone if there is no Home or Work phone number attached.

For example, a contact with only a pager phone number might not appear in your mobile phone's contacts list after you sync.

Solution

Either do not use the "Only synchronize contacts with phone numbers" option, or paste the number into a different field, such as home or work.

Note: You can set iSync to not sync contacts to your phone if they don't have telephone numbers in Address Book.